Perhaps you should try some spelling variations:
"python using java snippets" » "python using data snippets"
"dong giam co snippets" » "duong giam co snippets", "dong giao co snippets", "dung giam co snippets", "dong gian co snippets", "dong gia co snippets", "dong giau co snippets"
"locating bug code snippets" » "locating bung code snippets", "locating bugs code snippets", "locating bug core snippets"

Try widening your search to All Fields.

You may be able to get more results by adjusting your search query.

• Performing a fuzzy search may retrieve terms with similar spellings: (((("dong giam co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))~.
• If you are trying to use Boolean operators, they must be ALL CAPS: (((("dong giam co snippets") OR ("python using java snippets"))) OR ("locating bug code snippets")).
• Removing quotes may allow a broader search: (((( dong giam co snippets ) or ( python using java snippets ))) or ( locating bug code snippets )).
• Adding a wildcard symbol may retrieve word variants: (((("dong giam co snippets") or ("python using java snippets"))) or ("locating bug code snippets"))*.